A bucket is a slot in the container's internal hash table to which elements are assigned based on the hash value of their key.

The number of elements in a bucket influences the time it takes to access a particular element in the bucket. The container automatically increases the number of buckets to keep the load factor (which is the average bucket size) below its max_load_factor.

Parameters

n

Bucket number.
This shall be lower than bucket_count.
Member type size_type is an unsigned integral type.